"It is bad to spilt, I cut it on the out side of the joints and use one jiont when I make the call , and drill a whole in the joint.
You can cut it any time of the year as far as I know.
Dont use swithcane , it looks like bamboo but it is too thined walled , it will bust wide open.
you can cut and make a call that day with it, as it dries it will turn yellow or brown." This is from Robin "Preacher" He builds these all the time